Soria experienced tightness in his pectoral muscle late in April which has shut him down for three weeks. He is expected to be ready to activated from the disabled list in early July.
General manager Jon Daniels told ESPN Sunday that eye specialists have not been able to locate a problem with Olt's vision. Olt was hitting .139 with a home run and six RBI in 20 minor-league games.
"You always like to have answers," Daniels said. "You deal with what you have."
Pierzynski went 0 for 3 with a strikeout. He is expected to be activated prior to Tuesday's game at home against the A's.
Dunn, who was forced to leave Saturday's game with back spasms, returned to the lineup as he struck out three times and drew a walk. He finished 0 for 3 in a 6-2 defeat.
Dunn is hitting .364 (8 for 22) with four homers and 10 RBI in his last six games.
Victorino singled in the first, stole a base and drew a walk. He finished 1 for 4 with a walk and a run scored in a 5-1 win. He is hitting .282/.343/.363 with two homers and 10 RBI.
Flaherty was optioned to Norfolk Saturday after hitting just .133/.228/.233 in 30 games to start the season.
"Last year, he was a Rule 5 guy and the circumstances were different," Showalter said. "We got him through the year and he was contributor from last year, and I think [he] will be again. But he needs to go get his legs back under him, offensively, his confidence, everything."
Fowler singled four times as he finished 4 for 5 with two runs scored in a 5-0 win.
Fowler is hitting .500 (10 for 20) with seven runs scored and two RBI in his last four games. He is hitting .286 with eight home runs and 18 RBI.
Bowden struck out seven, walked five and carried a 3.78 ERA through 16 2/3 innings of work in the majors.
Pagan was removed from the game in the fifth. He finished 0 for 2 with a strikeout in a 5-0 defeat. He is hitting 256 with two homers and 18 RBI. His status for Monday's series opener at home against the Nationals is still up in the air.
Hernandez (2-1), who made his sixth start of the season, surrendered a solo home run to Will Middlebrooks in the second. He was charged with three runs and nine hits over 4 1/3 innings of work. He struck out two and walked one as he saw his ERA rise from 5.79 to 5.85.
Hernandez is scheduled to make his next start Friday at Detroit. He has a whopping 10.22 ERA in three starts away from Target Field.